Equations, Graphs, and Tables

What are the dependent quantities from the table?

• {-3, -2, -1, 0, 1, 2, 3}

• {9, 6, 3, 0, -3, -6, -9}

• x

• y

Which equation matches the table?

• y = 3x + 9

• y = x + 9 

• y = x + 3

• y = 12x - 3

Which equation matches the description if x is the number of minutes and y is the total cost.

• y = 1.20

• y= 1.20x

• x = 1.20

• x = 1.20y

Which is the graph of y= -x + 2?

• A

• B

• C

• D

Which graph matches the table?

• A

• B

• C

• D

What does the point (2, 94) represent in this situation?

• Every week, they earn $94.

• After 94 weeks, they save $2.

• After 1 week, they save $47.

• After 2 weeks, they save $94.

A phone company charges a sign-up fee of $3.50, plus $x for every hour the phone is used. If Brian talked on the phone for 12 hours and paid a total of $75.50, which of the following equations can be used to find, x, the hourly rate of the phone plan?

• 3.50 + x = 75.50 

• 3.50 - x = 75.50 

• 75.50 + 12x = 3.50 

• 3.50 + 12x = 75.50

Nadea has $600 in her savings account. She withdraws $35 per week to buy gas for her car. Which equation can be used to determine how many weeks, w, it will take for Nadea to reduce her balance to $285?

• (600 – 35)w = 285 

• 35w – 600 = 285 

• 600 – w = 285 

•  600 – 35w = 285

Write the equation of the line.

• y= -1x-3

• y= -3x-1

• y=(-1/3)x-1

• y= -3x-3

Write the equation.

• y = 4x + 3

• y = 4x -3

• y = 3x + 4

• y = 8x + 2